PDS_VERSION_ID = PDS3 /* File Characteristics */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 32 FILE_RECORDS = 2701 /* Data Object Pointers */ ^TABLE = "epi.tab" /* Identification Keywords */ DATA_SET_ID = "EAR-A-5-DDR-SHAPE-MODELS-V1.0" PRODUCT_NAME = "Epimetheus Shape Model" PRODUCT_ID = "SHAPE-EPI-199703" INSTRUMENT_HOST_NAME = "N/A" INSTRUMENT_NAME = "N/A" TARGET_NAME = EPIMETHEUS START_TIME = "N/A" STOP_TIME = "N/A" PRODUCT_CREATION_TIME = 1997-03-24 /* Peer Review Date */ RECORD_FORMAT = "3(2x,f8.4)" /* Data Object Descriptions */ OBJECT = TABLE ROWS = 2701 ROW_BYTES = 32 INTERCHANGE_FORMAT = ASCII COLUMNS = 3 DESCRIPTION = "Numerical shape model of S11 Epimetheus, derived from Voyager 1 and 2 image data. This shape model consists of a grid with points every 5 degrees in latitude and longitude, with a radius in km associated with each point. Limb and terminator positions determined the shape model. Coordinates are planetocentric. Shape model is poorly constrained in a region extending from 50N,350W to 20N, 20W (up to 8 km uncertainty?), and 60 - 90S, 70-160 W (up to 5 km uncertainty?). Rest of surface is constrained to about 3 km. Epimetheus rotates synchronously with its orbital period. Spin pole: RA=40.58, Dec=83.52 J2000, Earth Equatorial Coordinates, in degrees. Prime meridian W= 293.87 + 518.4907239d in degrees, where d is the number of days from the standard epoch (JD 2451545.0) The slight corrections to these as a function of time (precession) can be found in Davies et al. 1996." OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "LATITUDE" UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 3 BYTES = 8 FORMAT = "F8.4" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "LONGITUDE" UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 13 BYTES = 8 FORMAT = "F8.4" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "RADIUS" DESCRIPTION = "Shape model radius for this latitude and longitude." UNIT = KILOMETER DATA_TYPE = ASCII_REAL START_BYTE = 23 BYTES = 8 FORMAT = "F8.4" END_OBJECT = COLUMN END_OBJECT = TABLE END